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| <h1 id="hal_watchdog">hal_watchdog</h1> |
| <p>The hardware independent interface to enable internal hardware watchdogs.</p> |
| <h3 id="description">Description</h3> |
| <p>The <code>hal_watchdog_init</code> interface can be used to set a recurring watchdog timer to fire no sooner than in 'expire_secs' seconds. </p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code><span style="color: #A90D91">int</span> <span style="color: #000000">hal_watchdog_init</span>(<span style="color: #A90D91">uint32_t</span> <span style="color: #000000">expire_msecs</span>); |
| </code></pre></div> |
| |
| <p>Watchdog needs to be then started with a call to <code>hal_watchdog_enable()</code>. |
| Watchdog should be tickled periodically with a frequency smaller than 'expire_secs' using <code>hal_watchdog_tickle()</code>.</p> |
| <h3 id="definition">Definition</h3> |
| <p><a href="https://github.com/apache/incubator-mynewt-core/blob/master/hw/hal/include/hal/hal_watchdog.h">hal_watchdog</a></p> |
| <h3 id="examples">Examples</h3> |
| <p>The OS initializes and starts a watchdog timer and tickles it periodically to check that the OS is running properly. This can be seen in <a href="https://github.com/apache/incubator-mynewt-core/blob/master/kernel/os/src/os.c">/kernel/os/src/os.c</a>.</p> |
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